Riveting-machine



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No. 445,935. Patented Feb. 3, 1891'.

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G. H. PEGRAM.v RIVETING MACHINE.

Patented Feb. 3, 1891.

l I I.

UNITED STATES PATENT OFFICE.

GEORGE H. PEGRAM, OF ST. LOUIS, MISSOURI. i'

RlVETlNG-NIACHINE.

SPECIFICATION forming part of Letters Patent No. 445,935, dated February3, 1891. Application tiled October 20,1890.A Serial No. 368,701. (Nomodel.)

To all when?, it may concern:

Be it known that I, GEORGE H. PEGRAM, of

St. Louis, in the State of Missouri, haveinven ted an Improvement inRiveting-Machines for Riveting Together the Sections Constituting aColumn, of which the following is a specification.

My invention has reference to riveting-machines for riveting togetherthe sections conro vstituting a tube or column; and it consists ofcertain improvements, which are fully set forth in thefollowingspecifica-tion, and shown in the accompanying drawings, which form avpart thereof.

The object of my invention is to provide suitable mechanism for handlingthe various sections which are employed to make up a tube or column,whereby the same may be 4riveted in a speedy manner, and preferably 2oso as to drive two rivets at the same time.

AThere tubes or columns are made of rolled sections it has been`necessary to rivet the sections together to form a complete tube orcolumn, either by rivets driven through externally-projectingflanges,where power may be used,or internally-projected rivets, whichmust be driven by hand.

The object of my invention is to enable the riveting of such sections bya properly-or- 3o Aganized machine, whereby great rapidity in.themanufacture of the tubes orcolumns may be obtained.

In carrying out my invention I provide suitable means, such as arailway, for support- 55 ing the sections which have been temporarilyunited into the relative positions for the completed tube or column,whereby the tube or column may be moved longitudinally with `respect toa suitable riveting-machine. In 4o this particular application t-heriveting-machine is operated by hydraulic power and operates upon theinside of the tube or column, the heads of the rivets being held inposition `from the outside of the tube or column by suitablemechanism,which is fully described hereinafter. The rivets are insertedfrom the outside through the holes in the columnsections, and are then.held in place by suitable-.adjustable anvils, which receive the 501`strain put upon therivets when the hydraulic @r'veter upon the insideof the column is operated to put van internal head upon the said rivets.

Referring tothe drawings, Figure l is a side elevation of ariveting-machine embodying my invention. Fig. 2 is a plan view ot samewith railway omitted. Fig. 3 is an enlarged plan view of the right-handend of Fig. 2, with the post or column shown in dotted lines; and Fig. 4is a cross-sectional view on line w of Fig.

A is a horizontal rod secured at one end to a bearing A', preferablywith provision for lateral movement, and supporting at the other end ahydraulic riveter-head B. The riveterhead B is arranged between the tworivetholding anvils O C.

E is a .railway arranged below the rod A, and-upon which one or moresmall trucks d travel, said trucks being provided with suitable supportsfor the column or post D, which is formed of several sections ot anysuitable cross-section. .These trucks CZ may have their supportsmodified or changed or made adjustable to suit the cross-section of thetube or column to be riveted. By this means the column D may be movedalong parallel to the rod A, and so as to travel over the head B andmaintain the series of holes in a proper line to be presented insuccession to the riveting-dies b of the riveter, whereby the rivetswhich are passed through theholes may have their ends headed.

The riveter consists of the main head, in which a piston B operateslaterally. The main head carries one ot the diesb and the piston Bcarries the other dies b, said dies being arranged diametricallyopposite. The dies b b are readily replaceable to suit different work.lThe piston B is provided with an internal cylinder D', which moves withthe piston B and works upon a stationary piston cl, secured to the headIt' water is forced into the port E2, the piston B is forced away fromthe head B and the dies b b are moved apart. It now the water is allowedto escape from the port E2 and water is forced into the port E', thenthe piston B', with its die, is moved into the head B. By this means areciprocation maybe had between the two dies b. In practice thisreciprocation is controlled through the valve-rod c by a valve e, (shownIOO means ofa hand-screw K.

in Fig. 1,) arranged adjacent to the support A', and connecting with theport-pipes E E2, which extend along the rod A to the head B. This valvee is of the ordinary type, which will allow water under pressure to'flow into either port E or E2 and allow the escape of water from theother port.

Arranged upon either side of the head B, and supported upon atransverseframe J, are the two anvil mechanisms C for holding the rivets in placein the tube or column during the riveting operation. These devices arethe same upon each side of the rivet-head, and

therefore I will describe but one of them.

F is the anvil-die, and is fitted to a reciprocating head G, guided inthe main frame J. This head G may be reciprocated bymeans of a toggle L,which is operated by a link Z and a treadle motion M of any suitabledescription. Vhen the toggle L is raised into a locking position, theanvil-die F will be pressing against the head of the rivet. For varioussizes of columns the anvil-die F may be changed as to its length, andthereby compensate for the difference in space required.

Il is a block having a vertical face adjacent to the head G and anoblique face to the rear, working in a suitable guideway on the mainframe J. This block is moved vertically by The vertical edge of theblock H is provided with vertical guidegrooves g, in which is guided averticallymovable locking-block I, having a pin e' to strike upon thetrame .l and sustain the said block after having fallen to a distancesufficient to actas a thrust or locking block for the head G. When theparts are in the position shown in Fig. 4, a vmovement of the treadle Mwill cause the head G to be projeeted forward toward the column, andupon this operation taking place the locking-block I, which is sustainedby the head G before the operation, is allowed to fall by gravity andcomes between the rear end of the head G and the block H and receivesthe thrust put upon the anvil-die F. Slight adjustments can be made bymeans of the wedge-shaped plug H being moved up or down by means of thescrew K. Before the anvil-die can be withdrawn the block I must beraised, and then upon withdrawing the anvil-die and its head G the blockI will be sustained, as indicated in Fig. l.

The operation of projecting the anvil-dies F toward the column on eachside takes place simultaneously and is under the control of the samefoot-treadle M. As soon as the rivets have been inserted the anvildiesare thrust forward and locked in position. The hydraulic riveter is thenoperated and the rivets have their inner ends upset or headed,completing the riveting operation. As soon as this is done the dies bare drawn together and the dies F are moved apart. The column is thenmoved over the railway to the next rivet-hole and the operation repeatedonce more.

It is evident that one ot the anvil devices C and the riveter might beemployed for single riveting; but in this case the head B would have tobe rigidly sustained against the thrust due to the riveting operation,but otherwise my mechanism is equally adapted to single riveting forflanges or flat work.

It is immaterial to my invention whether the apparatus is arrangedhorizontallyor vertically, as it may be arranged at any angle, so thatthe work may be fed horizontally, vertically, or obliquely, the guidesfor the work being modified accordingly, as would be seltevident to anymechanic.

Ido not limitniyselt' tothe details of construction herein set ont, asthey may be modiied in various ways without departing from theprinciples of my invention.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a riveting-machine, the combination of two anvil-dies, means toreciprocate said anvil-dies to or from each other, a locking device tolock saizd anvil-dies when moved toward each other, and au intermediaterivetin g-machine having riveting-dies arranged in aline between the twoanvil-dies and respectively adapted to be moved toward .the respectiveanvil-dies.

2. In a riveting-machine, the combination of two anvil-dies, means toreciprocate said anvil-dies to or from each other, a locking device tolock said anvil-dies when moved toward each other, an intermediateriveting-machine having riveting-dies arranged in a line between the twoanvil-dies and adapted to be respectively moved toward the respectiveanvil-dies, and a movable support for the work to be riveted for thepurpose of guiding the work between the' riveting-machine and theanvil-dies.

3. In a riveting-machine, the combination of two anvil-dies, means toreciprocate said anvil-dies to or from each other, a locking device tolock said anvil-dies when moved toward each other, an intermediaterivetingmachine having riveting-dies arranged in a line between the twoanvil-dies and adapted to be respectively moved toward the respectiveanvil-dies, and a movable support for the work to be riveted for thepurpose of guiding the work between the riveting-machine and theanvil-dies', consisting of a railway andone or more trucks or carriagesupon which the work is supported.

4. In a riveting-machine, the combination of two anvil-dies, means toreciprocate said anvil-dies to or from each other, a locking device tolock said anvil-dies when moved toward each other, an intermediateriveting- IOO IIO

machine having riveting-dies arranged in a 5. In a riveting-machine, thecombination ot' two anvil-dies, means to reciprocate said anvil-dies toor from each other, a locking device to lock said anvil-dies when movedtoward each other, an intermediate rivetingmachine having riveting-diesarranged in a line between the two anvil-dies and adapted to berespectively moved toward the respective anvil-dies, an arm or rodsecured at one end to a support and at the other end to theriveting-machine, and a railway arranged parallel to the arm or rod forsupporting the work which encircles the rod or arm and moving-itlongitudinally with respect thereto between the riveting-machine and theanvil-dies.

6. In a riveting-machine, the combination of two anvil-dies and aninterposed rivetingmachine provided with two oppositely-reciprocatingriveting-dies arranged in a line between the anvil-dies, and powermechanism for reciprocating said riveting-dies.

7. In a riveting-machine, the combination of two anvil-dies, aninterposed riveting-machine provided with two oppositely-reciproeatingdies arranged in a line between the anvil-dies, and 'power devices forreciprocating said riveting-dies, and an arm or shaft supporting at oneend the riveting-machine and the other end secured to a support.

S. In a riveting-machine, the combination of two anvil-dies, aninterposed riveting-machine provided with two oppositely-reciproeatingriveting-Clics arranged in a line between the anvil-des,`and powerdevices for reciprocating said riveting-dies, an arm or shaft supportingat one end the riveting-machine and the other end secured to a support,and guide devices for supporting the work and moving it between theanvil-dies and riveting-machine.

9. In a riveting-machine, the combination of an anvil-die,ariveting-die, power mechanism to reciprocate said riveting-die, an armor rod supporting the power mechanism for said riveting-die at one endand secured at the other end to a support, and a supportingguide for thework to be riveted, adapted to move the work parallel to the arm or rodand between the riveting and anvil dies.

10. In a riveting-machine, the combination of an anvil-die, means toreciprocate said an- Y vil-die to or from the work, a lock to lock saidanvil-die in position when moved toward the work, a riveting-die, power`mechanism to reciprocate said riveting-die, an arm or rod supporting thepower mechanism for said riveting-die at one end and secured at theother end to a support, and a supporting-guide for the work to beriveted, adapted to move the work parallel to the arm or rod and betweenthe riveting and anvil dies.

1l. In a riveting-machine, the combination of an anvil-die, means toreciprocate said anvil-die to or from the work,a lock to lock saidanvil-die in position when moved toward the work, adjusting mechanismfor adjusting the locking device, whereby the position of the anvil-diemay be accurately adjusted independently of the locking mechanism, ariveting-die, power mechanism to reciprocate said riveting-die, an armor rod supporting the power mechanism for said riveting-die at one endand secured at the other end to a support, and a supporting-guide forthe work to be riveted, adapted to move the work parallel to the arm orrod and between the riveting and anvil dies.

12. In a riveting-machine, the combination of two anvil-dies, means toreciprocate said anvil-dies to or from each other, alocking device tolock said anvil-dies when moved toward each other, adjusting devicest'or adjusting the locking mechanism for accurately adjusting theposition of the anvil-dies with reference to the work, and anintermediate riveting-machine having riveting-dies arranged in a linebetween the two anvil-dies and adapted to be moved toward the respectiveanvil-dies.

I3. In a riveting-machine,thc combination of two anvil-dies, means toreciprocate said anvil-dies to or from each other, a locking device tolock said anvil-dies when moved toward each other, an intermediatehydraulic rivetin g-machine having riveting-dies arranged in a linebetween the two anvil-dies and adapted tobe simultaneously moved towardthe respective dies, and means to control the operation of the hydraulicmechanism of the riveting-machine, arranged at a distance from theriveting-dies.

14. In a riveting-machine, the combination of two anvil-dies with aninterposed riveting machine having two riveting-dies arranged in a linebetween the anvil-dies, a support. for the riveting-machine permittingwork to surround it, and means to support the work and permit its being'fed between the anvil and riveting dies.

I5. In a riveting-machine, the combination Aof twooppositely-reciprocating anvildies,

means to relatively reciprocate said anvildies to or from each other,locking devices to hold said anvil-dies against reciprocation When movedtoward each other, a rivet-ingma-chine interposed between the twoanvildies and having riveting-dies arranged in line with the anvil-dies,and power mechanism to impart to said riveting-dies a relativelyopposite reciprocation.

IG. In a riveting-machine, the combination ot' a riveting-head havingriveting-dies facing' in opposite directions, two anvil-dies arranged inline with the riveting-dies and pointing in opposite directions,reciprocating heads for said anvil-dies, a thrust-block arranged back ofeach of the reciprocating heads, and reciprocating locking-blocksadapted to be projected between the thrust-block and the reciprocatingheads when thelatter are moved toward the riveting-dies.

17. In a riveting-machine, the combination of ariveting-head havingrivetingdies facing in opposite directions, two anvil-dies arranged inline `with the riveting-dies and pointingin IOO opposite directions,reciprocating heads for said anvil-dies, a thrust-block arranged back ofeach of the reciprocating heads, reciprocating locking-blocks adapted tobe proj eoted between the thrust-block and the reciprocating heads whenthe latter are moved toward the riveting-dies, and means to adjust thethrust-block to move it to or from the riveting-dies.

1S. In a riveting-machine, the combination of a riveting-head havingriveting-dies facing in opposite directions, two anvil-dies arrangedeating heads when the latter are moved' toward the riveting-dies, andpower devices to simultaneously reciprocate the heads and theiranvil-dies in opposite directions.

19. In an apparatus for riveting tubes and columns, the combination ofrivet-holding or In testimony of which invention I have 3o hereunto setmy hand.

GEORGE H. PEGRAM.

IVitnesses:

WV. A. RILEY, F. B. AYREs.

